Ordoñez, S. A. (1999). Life cycle: 50 years in law and letters. Megabooks Company.
Lua i Stíl Chicago (17ú heag.)Ordoñez, Sedfrey A. Life Cycle: 50 Years in Law and Letters. Quezon City: Megabooks Company, 1999.
Lua MLA (9ú heag.)Ordoñez, Sedfrey A. Life Cycle: 50 Years in Law and Letters. Megabooks Company, 1999.
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